The Philae landing module has successfully detached from Rosetta!
We're only an hour or so away from landing on a comet for the first time in history - a comet the size of the city of London, 500 million kilometres away travelling through space at a speed of 55,000 km/h. Spectacular.
Here's one of the photos Philae took of Rosetta shortly after detaching:
Here's a video explaining: